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Conference Paper: Device enhancement of hydroxyquinloine-based organic light-emitting diodes using a uniformly mixed electron transporting host

TitleDevice enhancement of hydroxyquinloine-based organic light-emitting diodes using a uniformly mixed electron transporting host
Authors
Keywords1,10-phenanthroline
co-host
Electron transport
Mobility
Tris (8-hydroxyquinoline) aluminum
Issue Date2005
PublisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml
Citation
Proceedings Of Spie - The International Society For Optical Engineering, 2005, v. 5937, p. 1-9 How to Cite?
AbstractBy engineering a new cohosting system of tris(8-hydroxyquinoline) and 4,7-diphenyl-1,10-phenanthroline in the electron transport layer, the current efficiency of the organic light emitting diode is improved by more than 20% while the bias is reduced by ∼40% as compared to the device with a single host of Alq 3 as the electron transport layer. The maximum luminance is over 16000 cd/m 2 at the bias of 22V and the current of 475mA/cm 2, which is ∼73% higher than the single host Alq 3 device without optimizing the layer thickness. The lifetime under ambient environment is enhanced by a factor of ∼1.8. The reasons for the improvement will be investigated. The results strongly indicate that the knowledge of bulk conductivity engineering of organic n-type transporters shows practical significance in OLED applications.
Persistent Identifierhttp://hdl.handle.net/10722/98835
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorChoy, WCHen_HK
dc.contributor.authorFong, HHen_HK
dc.contributor.authorHui, KNen_HK
dc.contributor.authorLiang, YJen_HK
dc.date.accessioned2010-09-25T18:04:15Z-
dc.date.available2010-09-25T18:04:15Z-
dc.date.issued2005en_HK
dc.identifier.citationProceedings Of Spie - The International Society For Optical Engineering, 2005, v. 5937, p. 1-9en_HK
dc.identifier.issn0277-786Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/98835-
dc.description.abstractBy engineering a new cohosting system of tris(8-hydroxyquinoline) and 4,7-diphenyl-1,10-phenanthroline in the electron transport layer, the current efficiency of the organic light emitting diode is improved by more than 20% while the bias is reduced by ∼40% as compared to the device with a single host of Alq 3 as the electron transport layer. The maximum luminance is over 16000 cd/m 2 at the bias of 22V and the current of 475mA/cm 2, which is ∼73% higher than the single host Alq 3 device without optimizing the layer thickness. The lifetime under ambient environment is enhanced by a factor of ∼1.8. The reasons for the improvement will be investigated. The results strongly indicate that the knowledge of bulk conductivity engineering of organic n-type transporters shows practical significance in OLED applications.en_HK
dc.languageengen_HK
dc.publisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xmlen_HK
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_HK
dc.subject1,10-phenanthrolineen_HK
dc.subjectco-hosten_HK
dc.subjectElectron transporten_HK
dc.subjectMobilityen_HK
dc.subjectTris (8-hydroxyquinoline) aluminumen_HK
dc.titleDevice enhancement of hydroxyquinloine-based organic light-emitting diodes using a uniformly mixed electron transporting hosten_HK
dc.typeConference_Paperen_HK
dc.identifier.emailChoy, WCH:chchoy@eee.hku.hken_HK
dc.identifier.authorityChoy, WCH=rp00218en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1117/12.618103en_HK
dc.identifier.scopuseid_2-s2.0-31744447328en_HK
dc.identifier.hkuros131806en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-31744447328&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume5937en_HK
dc.identifier.spage1en_HK
dc.identifier.epage9en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChoy, WCH=7006202371en_HK
dc.identifier.scopusauthoridFong, HH=18037415200en_HK
dc.identifier.scopusauthoridHui, KN=12139840100en_HK
dc.identifier.scopusauthoridLiang, YJ=34969235300en_HK

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